Squalicorax baharijensis ( Stromer, 1927 )

Vullo, Romain, Cappetta, Henri & Néraudeau, Didier, 2007, New sharks and rays from the Cenomanian and Turonian of Charentes, France, Acta Palaeontologica Polonica 52 (1), pp. 99-116 : 105

publication ID

https://doi.org/ 10.5281/zenodo.13741981

persistent identifier

https://treatment.plazi.org/id/03A787AC-1654-FFAF-F15C-838BCC16FC49

treatment provided by

Felipe

scientific name

Squalicorax baharijensis ( Stromer, 1927 )
status

 

Squalicorax baharijensis ( Stromer, 1927)

Fig. 2D View Fig .

1927 Corax baharijensis Stromer, 1927: 5 , pl. 1: 25–27.

1969 Squalicorax kaupi ; Bilelo 1969: 342, text−fig. 2l–o (?p,?q).

1974 Squalicorax baharijensis ; Slaughter and Thurmond 1974: 32, figs. 2b, c.

1974 Squalicorax curvatus ; Meyer 1974: 298, 300, text−fig. 89.

1989 Squalicorax baharijensis ; Werner 1989: 35, text−fig. 13, pl. 14: 1–9, pl. 15: 1–3.

1993 Squalicorax curvatus ; Welton and Farish 1993: 116, figs. 1, 2, and 4 (?fig. 3).

1999 Squalicorax baharijensis ; Cappetta and Case 1999: 12, pl. 3: 6–9.

2001 Squalicorax baharijensis ; Case 2001: 106, pl. 2: 3.

2002 Squalicorax baharijensis ; Bernardez 2002: 279, pls. 42, 43. Unpublished PhD.

Material.—Four teeth from Le Puits des Insurgés, Madame Island, l’Amas, Roullet–Saint−Estèphe and Le Mas, La Couronne (UM LMS 1), Upper Cenomanian C4−D; a few teeth from Les Renardières, Tonnay−Charente, Lower Cenomanian B1.

Description.—The most characteristic tooth corresponds to an anterior element and is 15.7 mm high (UM LMS 1; Fig. 2D View Fig ). It is higher than wide, with a crown that is narrow and sharp. The mesial cutting edge shows a regular and distinct convexity, while the distal one is completely straight. The distal notch and heel are well developed. The cutting edges are finely serrated. The root is rather thick, with the distal lobe more developed than the mesial one and a deep basal notch.

Remarks.—This rather large species of Squalicorax , restricted to the Cenomanian, displays a broad geographical distribution. It occurs in Egypt ( Werner 1989), in North America (Texas, Minnesota) ( Cappetta and Case 1999; Case 2001) and in Europe, where it has been recently described from Spain ( Bernardez 2002). Its discovery in Charentes is thus not surprising. This species was not recognized by Landemaine (1991) among the Squalicorax teeth from the Lower Cenomanian of Les Renardières, all assigned (without illustrations) by this author to S. falcatus . Cappetta and Case (1999) and Antunes and Cappetta (2002) noted that the status of the species S. falcatus is poorly defined, and Landemaine’s assignment thus remains doubtful. However, we collected a few teeth that might correspond to S. baharijensis . It is interesting to note that S. baharijensis is always accompanied by “ Carcharias ” amonensis ( Cappetta and Case, 1975), an abundant species occurring in all the Cenomanian localities studied in Charentes ( Landemaine 1991; Vullo et al. 2003, 2005; Vullo 2005; Table 1). This association is characteristic of the peri−Tethyan and North American Cenomanian shallow water deposits.

LMS

Carolina Biological Supply Company

Kingdom

Animalia

Phylum

Chordata

Class

Elasmobranchii

Order

Lamniformes

Family

Lamnidae

Genus

Squalicorax

Loc

Squalicorax baharijensis ( Stromer, 1927 )

Vullo, Romain, Cappetta, Henri & Néraudeau, Didier 2007
2007
Loc

Squalicorax baharijensis

Bernardez, E. 2002: 279
2002
Loc

Squalicorax baharijensis

Case, G. R. 2001: 106
2001
Loc

Squalicorax baharijensis

Cappetta, H. & Case, G. R. 1999: 12
1999
Loc

Squalicorax curvatus

Welton, B. J. & Farish, R. F. 1993: 116
1993
Loc

Squalicorax baharijensis

Werner, C. 1989: 35
1989
Loc

Squalicorax baharijensis

Slaughter, B. H. & Thurmond, J. T. 1974: 32
1974
Loc

Squalicorax curvatus

Meyer, R. L. 1974: 298
1974
Loc

Squalicorax kaupi

Bilelo, A. M. 1969: 342
1969
Loc

Corax baharijensis

Stromer, E. 1927: 5
1927
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